Find the value of the unknown variable.Find r if d = rt, t = 2 hrs, and d = 18 mi.
A. 16 mi/hr
B. 20 mi/hr
C. 0.1 mi/hr
D. 9 mi/hr
Answer: D
Mathematics
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Identify the distribution as symmetric, left-skewed, or right-skewed.Number of siblings of adults in the U.S.
A. Right-skewed B. Symmetric C. Left-skewed
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Divide and simplify completely: -12 ÷ 
A. -
B. -20
C. 
D. -
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Solve the equation symbolically.x + 12.4 = 34.7
A. 26.3 B. 21.8 C. 23.3 D. 22.3
Mathematics
Rotate the axes so that the new equation contains no xy-term. Graph the new equation.x2 + 2xy + y2 - 8x + 8y = 0
A. 
B. 
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